Dr. Trezek has been servicing O'Fallon & Troy, Mo along with surrounding areas since 2000. He provides comprehensive dental care to individuals of all ages. At First Impressions Dental we utilize the latest advances in dental technology to provide patients with the highest standard of care in the most comfortable atmosphere.Our office provides the most advance techniques in smile enhancement including porcelain veneers, porcelain crowns, tooth whitening, implants, braces, Invisalign, bone grafting, bridges, tooth colored fillings, oral surgery, root canal treatment and sedation dentistry.